Refrigerating apparatus.



F. W. WOLF, JB. & H.KH. SOUTHWORTH RBPRIGERATING APPARATUS. APPLICATION FILED AUCLZZ, 1910.

Patented July 29, 1913.

3 SHEETS-SHEET 1 P. vv. WOLF, JB. E H. H. soUTHwoRTH. REFRXGBRATING APPARATUS.

APPLICATION FILED AUG. 22, 1910. 1,068,61 7, Patent-,ed July 29, 1913 F, W. WOLF, Jn. & H. H. SOTHWQRTH.

REFRIGERATING APPARATUS` APPUGANON FILED AUG, 1910,

Patented July 29, 1913y m fini 4tion from ono other, has .hui-oto 'the alternating absorbent t UNITED TATES @TENTFFICE FRED. WOLF, JR., AND HARRISON H. BOUTHVWOBTH, CHICAGO, ILLINOIS, AS- SIGNOBS'TO ICELESS REFRIGEBATOB COMPANY, CHICAGO, ILLINOIS, A CORPO- aA'r'IoN or ILLINOIS.

marmom'rmo ArrAsA'rUs.

Loosen.

To all whom, it may concern:

Be it known that we, Faso. W. Wonr, J r. and H.\iunsoN H. Sou'riiwoimi, citizens of the United-States and residents of Chicago, vin the county of ook and State of Illinois, have invented certain new and useful Improvements' in -Refrigerating Apparatus; and we do hereby declar'e that the following is ii-full, clear, and exact description thereof, reference being had to the accompanying`drawings, and to the letters of reference niiirked thereon, which form a'pai't of this speciiication. I This invention relates` to im roveuients'in a refrigerating apparatus an particularly to improvements'in relfrigeratingapparatus of the absorbent type. The invention is shown herein as app ied to an ap aratus of refrigerating apparatus of this kin vin its most faniiliar-.fo'rm usually includes twol vdrums each constitutin .a generator-absorber an each of. which rnately contains weak liquor while theother ixmtains4 strong liquor, the one containingthe .weak liquor being subjected to the action of cooling water an receiving the ammonia as on its return from the refrigerating coil, while the'other containing stronghliquor is being subgectied to the actionof eat to drive Tod .the ain-l inonia gaa which it has previously absorbed to the condensin coils, where'the ammonia gas is condensed into-liquid form and thence conveyed through an expansion .valve beyond which it ex ands iis-ages through the refrigeratin coi s and so biick to the generator-absor r containing the weak liquor. After the capacit for absorption of the liqiior` in the weakv iqiiondrum has been satisfied, the coolin water ia diverted to the other drum whic now contains weak-liquor and the means for heating the latter drum, usually gas, is diverted tothe first drum which forinerl contained the weakliquorand now contains the stron liquor, so that the second drum no absor is ammonia gas, while tlic firstldrum gives oil' ammonia gas.- The sl iftinE of the cooling water from one Lg'ieiiei'iitor-ii soria-r to the other, and also e shifting I tho uns iii the i'cvcise'direcf generatiiriihsorher lto the ore required iiiaiiual opci-,

peeloatten ot Lettera Patent. Appunti aies Auna sa, me. anni mi. 57ans.

' ioo and the object of the pieient -iiivent I O 'iii is lo provide :iii apparatus iii which the Patented July 2o, 1913.

whi e iis the ammonia gas is drivenfoif from,

the stron liquor in the other generator, the volume o the liquid in that tank is proportionately decreased. lIn carrying out our inventionwe have applied this princi le mechanically to the operationv of certain evices by means of which the cooling water i is diverted to one' generator-absorber and. the gas supply is diverted to the other generator-absor r to correspond'to the change of location of the weak and-strong liquor.

In the drawings: Figure 1 is a top plan.

view of an apparatus embodying the novel features of our invention. Fig. is a front elevation of the salite Fig. 8 is a transverse vertical section through the apparatus on the line 8--3 of Fig. 1. Fig. 4 1s a longitudinal section through the apparatus on the line 4 4 ofFig.- 1. s Fig. 5 andti are detail sectional views to be referred to more particiilarlv later.

In that embodiment Aof our invention illustrated in the drawings, 10 and 11 indicate drums ofany usual or convenient construction iidapted for use in connection with apparatus, each lconstituting a generator-a orber. .Said drums are supported on a suitable base-frame 12.

, 13 is a tank adapted to receive the cooling water as it falls from the drums, and 18* is a drain pi from which the water in said tank may ie led `to any suitable place for disposal. v

.14 and 15 are the usual cooling water pipesy rigidly supported in aposition above the drums and runnin longitudinally thereof. --Said water pipes ave perforations 14, 1lil through whichl the water flows over the drums.

. ioii 16 17-are the usual gas burner pipes lo-` cated under the drums and extending lon itudinally.y thereof. Tlievare provided with burneriopenings 10, .17* and are protected trom the coolin water flowing 'over the sur- 'The supply' of water to the pipes 14'and i5 is controlled hy cocks tively hy levers 14 and 15", t e one in this instance being located at one endof the apparatus, while the other lever '15" is located at the opposite end of the apparatus. 'I`lie supply of gas to the burner pipes 16 and 1T is likewise controlled b suitable cocks operated respectively by evers 16,-

1.7` sait gas-cock o erating levers beinglocated at that end ci their associated drums which is op osite to the end at which the lever contro ling the water supply for that di'uin is located.

20 is a rock-shaft see Fig. 2) which is suitably mounted in arings 20, 20, secured to the front ends of the drums 10 and l1. 21, 22 are rock-arms rigidly secured at the ends of said rock-shaft 20 and pivotally connected by pins and slots, the one 21, to the lever 14" which operates the cock con trolliii the. water supply to the tank 10, while t ic other 22 is pivotally connected to the lever 17 operating the which controls the gas supply to the hiirner pipe un der the driiiii 11. I`his mechanism is diiplicated at the opposite end of the apparatus where 23 indicates a rockshaft mounted in bearingsh 23, 23, seciired to the rear ends of the drums and 24, 25 indicate rock-arms rigidly secured tothe ends of said rockshafts. The rock-arm 24 is pvotally connected hy a pin .and slot to the lever 16 'which operates the cock controlling the water supply for the pipe 15 above the druui 11, an the rock-arm 25 is pivotally connected in a similar manner to the'lever 16 which operates the cock controlling the gas aiiyylily to the pipe 16 under the drum 10.

ie rocio-shafts 20 and 23 are connected so as to rock together by means of levers 26 and 27 rigidly connected respectively to the shafts 20 and 23 and a lin`k 28 pivotally con-` necting said levers. Said levers 26 and 2T are provided-with angular arms 26, 27 above their respective rock-shafts, the purpose of which will presently appear.

ln each tank is located a tloat which is adapted to rise and fall with the rising and falling level of the liquor in said tank. ASaid tloata are each connected rigidly to a lever which 'operates a rock-shaft projectin through a suitable stutiing box iii the wa of the associated drum.

30. 3l indicate the floats located res ctively in the drums 10 and 11, each rigidly connected to an associated lever-arin 30 31` which is ami i0 a rock-shaft rio. ai which projects through a stutiing box 30:e 31 secnrcd in the wall of the drums 10, 11. The

o I tli'c shaft 30" is secured va rocking-bracket :i2

lever 14.-:

tower? -hvmghterally separated arms/3 2 wine a runwa 35. 33 is a similar rocking- 31h and .having laterally separatedarms 33, 33, which are ivotally connected to the rear end of said) riinway'35. 36 is a hall adapted to roll in said runway which is closed at its ends to limit the movement of said ball. The bottom 35* of said runway on which said ball rolls is iarallel to the length of the runway tliroug out its length except at cach end where said bottoni is made at an angle to the length of said riuiwav as indicated at 35", 35". said angular deections beiner separated from the main construction is clearly indicated in Figs. 5 and 6 which re iresent longitudinal sections of one end of tlic runway in ditlerent positions. Said riinwav is iii-ranged so that the hall 36. when it rolls down tho runway 35i will strike one or" the angular extensions 26", 27' of the devices 2o. 27 depending in which direction thc runway is inclined. The ends cf the riiiiwny are provided with slots 35 to periiiit said angular extensions 26, 2T* to project into the path of the hall.

Each druiii is provided respectively with the usual intake pipes 10. 41 and the usual discharge pipes 42. 43 through which the ammonia gas is driven from the drum. The pipes 40. 4l. 41* connected with the refi'igerating coils, while the pipes 42, 43 are connected with a nniin pipe 43* which leads to the usual condensing and cooling coils.

At 45, 46. 4'( and 48 are located checkvalves to control the entrance and exit of the gas into and from tne respective drums in the usual manner.

'l`hc operation of the device is as follows: Consider the parts in the positiontindicated in the druwin i n which the druin l0contains stron liquor which is at a high level in said tan and the drum 11 .contains weak liquor which is :it a low level in the tank 11. At the suine time tho lever 1t`\ is in such osition that the gas is burning in the urner-pipe. 16 under tho drum 1t): the lever 14". in position such that the cooling witter is turned oli' from the pipe 11 above said drum: .'fhilc the levers 1i und 15" are in positions such that the gas is turned oil' ii: the pipi` 17 helow the druni l1 and the waiei drniu. 'l`hc drinn 10 is thus bein.;r heated while thi` drinn 11 is being cooled :ind gas i is hein;r ci-.iitinuoiislv driven from the li'i'ui eifd of each rock-shaft is suipoi'led in ai 10 while gas is heilig taken into and .-i.- soi-heil in the drum 11. This causes the level of thc lii noi' iii the diuui 10 to gradually lower whili` that of the ili'iiin ll gi'ailirhlly rises. li'i the #finie way the `tlofit titi iliscriuls while the liizil ill i'i`es. 'l`lii`A causes' :i cui pivotally connected to the front end of bracket rigidly connected to the rock-shaft bottom cfthe runway by humps 35". This arc connected to a main pipo.

is turned on through the pipe 15 ahove said l n responding shifting of the ends of the runway 35, the front end of the. said runway descending while the rear end rises. The runway` thus passes from the inclined-position indicated in Fig. l through a horizontal position to an inclined position opposite to that shown in Fig. 4 with the rear end above the forward end. By reason of the inclination of the end of the runway, as shown at 35. said runwayl passes above the horizontal position without having .any effect on the ball 3G as the art of the bottoni 352 does not reach the tion until some time after the main bottom 35 of said runway has passed the horizontal position. As soon as said runway, however. has become inclined sutlicient-y as a whole to incline the part 35 at the rear end of said runway, the ball Btl passes over the hump 35 between the two parts of the runway 35 and 35 and rolls down said trough. When it reaches the limit of 'ts movement and is thus traveling at its h ghest speed, the ball strikes the angular extension 26* of the lever 26. This rocks the shaft 20 and also through the link 28, the rock-shaft 23 and causes the rock-arms connected to said `hafta to reverse the positions of the res ective levers connected thereto, so as to s ift the lever 14" to turn on the cooling water in the pipe 14 above the drum 10, to shift the lever 1li" to tarn ot the gas applied to the pipe 16 ander thil d`runi 10, tos ift the lever 15 so as to turn oti' the cooling water to the ipe 15 above the drum 11, and to shift the ever 17? so as to turn on the gas supplied to the pipe 17 under the drum 11. The parts are thus reversed from what they were-in the beginning. the drinn 11 is now givin off gas, while the drinn l0 is taking in an absorbing gas, and the float 31 in the drum 11 is at a high level, while the float 30 in the drain 10 is at a low level. The operation then continues as before with the float in the drain 1l falling and that in the drum 10 rising until the runway is raised t0 the position shown in the drawings, whereupon the hall rolls down the runway and operates against the rectangular extension 27 of the lever arin 27 to move the respective levers haelt into the first position.

lt will be apparent that the operation of the apparatus is continuous and entirely automatic, requiring no attention whatever after it has once been started. The apparatas is of paiticular advantage for use in connection willi small refri erators, Wh'ere the employment of an atten ant to give the requisite constant attention to its operation ia not justified by economy.

While in illiotrating our invention we have shown herein an a parntus embodying one inbodimr:nt if tiie invention. it is apparent thai the details 0f construction may he modified iii vnr'ioastvayl without deorizontal poshA arting from the spirit vof the invention and we do not wish to be limited in any way thereby excegtin so far as pointed out in he appended c aims.

We claim as our invention o 1. In a nefrigerating apparatus of the alternatingb absorption type, including generator a sorbers adapted for containing liquor, return pipes connected to said generator-absorbers, discharge pipes connected to said generator-absorbers, and cooling andl heating means adapted to alternately cool and heat said `generatonabsorbers, a-lloat located in each of said eenerator-ahsiirhers adapted to follow the level' of the liquor therein, a rock-shaft operated by each float, said rock-shafts pro'ecting thronoli the walls of said generator-a sorbers, roc arms rigidly connected t0 said rock-shafts, a runway having pivotal connection with each of said rock-arms, a rolling member ada ted to run on said runway, means ada te to retain said rolling member at the igher end of said runway until it'reaches the up er limit of its movement, and levers locate at each end of said runway adapted to bo struck by said rolling member, said levers controlling said cooling and .heating means.

2. In a refrigerating apparatus of the alternating absorption ty e, including enerator-absorbers adapted or containing quid, return pipes connected to said generatorabsorbers, discharge pipes connected to said enerator-absorbers, and coolin and heating means adapted to coolan heat said enerator-absor ers in alternation, a float ocated in each generator-absorber adapted to follow the level of the li uor therein, a rock-shaft operated by cach oat, said rocksliafts projecting throu h the walls of said 105 generator-absorbers, roc -arms rigidly connected to said rock-shafts, a runway having pivotal connection with each of said rockarms, `a rolling member adapted to run on said runway, said runway having )arts at 110 each end inclined to its general iiiri-,et'ion ada ted to retain the rolling nieiiiher at the hig ierend thereof until that end has reached the upper limitI of its movement, and levers located at each end of said rnn- 115 way adapted to be struck b v said rollingr member, said levers controllingr said cooling and heating means.

3. In ii refrigerating apparatus of the alternating absorption type, including gener- 120 mor-absorbers adapted for oontainini.r liquor, return pipes' connected to said genera tor-absorbers. discharge pipes connected to said generator-absorhcis. cooling water pipes adapted to supply cooling water to said geii i2@ eratoruiltsoi'hers, burner pipes adapted for heatinihid generator-alisoilvers, and rontrollinz means adapted to siinultaiiemisly contro the slip ily of water and gas to .said water pipes an gas pipes, a lloat located in 13G each generator-absorber adapted to' follow the level of liquor tiiefcin, 0. Mit-shaft 0perated b aaeh`ioat, said rook-shafts projecting t rou h the walls of said nerators allsorlwrsnoe -arma rigidly connec ed to said roekqthafts a runway having pivotal connection with said rock-arms, a rolling member adapted to run on said runway, means adapted to retain said rolling;` member at the higher end o! said runway until it reaches the ulper limit of its movement, and levers locate at each end of said runway adapted to be struck by said rolling mexnber, said of August A. D. 1010.

FREI). W. WOLF, Jn. HARRISON H. SOUTHWORTH.

Witnesses (i. R, Wlmtms, T. H. Amfusns.

Copies at this patent may be obtained!" In seats nach, by addressing the "Commissioner o! Patents. Washington, D. 0. 

